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A study on stability of active layer of polymer solar cells: effect of UV–visible light with different conditions

  • Umer Mehmood
  • Khalil Harrabi
  • Ibnelwaleed A. Hussein
  • Nagendiran Shanmugam
  • A. Mekki
  • M. Mekki
  • M. A. McLachlan
Original Paper
  • 98 Downloads

Abstract

The objective of this study is to investigate the stability of the active layer of polymer solar cells from the effect of UV–visible light irradiation using different conditions with respect to time. The active layers were composed of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61 butyric acid methyl ester (PCBM), deposited on conductive glass substrates through spin coating. These samples are placed in a UV–visible light exposure chamber using different conditions (heat and water) over the specific periods of time. The samples are analyzed by UV–visible absorption spectroscopy, X-ray photoelectron spectroscopy and Fourier transforms infrared spectroscopy (FTIR) measurements. The results indicate that after continuous exposure to UV irradiation for 72 and 120 h, the sample shows a significant decrease in absorption of the main peak. The sample shows around 25% loss in absorption (main peak) after 72 h of irradiation. The FTIR results illustrate a progressive decrease in intensities of all typical absorption peaks owing to P3HT ring scission, side chain oxidation as well as degradation of the side groups of PCBM.

Graphical abstract

Keywords

P3HT PCBM Solar cells UV–visible light XPS analysis FTIR 

Notes

Acknowledgements

The authors would like to acknowledge the support provided by King Abdulaziz City for Science and Technology (KACST) through the Science and Technology Unit at King Fahd University of Petroleum and Minerals (KFUPM) for funding this work through Project # ENE2379-04 as part of the National Science, Technology and Innovation Plan. KFUPM is also acknowledged for supporting this research. The authors would like to acknowledge the Center of Research Excellence for Renewable Energy at KFUPM.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Umer Mehmood
    • 1
    • 2
  • Khalil Harrabi
    • 1
    • 3
  • Ibnelwaleed A. Hussein
    • 4
  • Nagendiran Shanmugam
    • 5
  • A. Mekki
    • 3
  • M. Mekki
    • 3
  • M. A. McLachlan
    • 6
  1. 1.Center of Research Excellence, Renewable Energy (CoRE-RE), Research Institute (RI)King Fahd University of Petroleum and Minerals (KFUPM)DhahranKingdom of Saudi Arabia
  2. 2.Department of Polymer and Process EngineeringUniversity of Engineering and Technology LahoreLahorePakistan
  3. 3.Department of PhysicsKFUPMDhahranKingdom of Saudi Arabia
  4. 4.Gas Processing CenterQatar UniversityDohaKingdom of Saudi Arabia
  5. 5.Chemical Engineering DepartmentKFUPMDhahranKingdom of Saudi Arabia
  6. 6.Department of Materials and Centre for Plastic ElectronicsImperial College LondonLondonUK

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